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/**
 * @author cbf4Life cbf4life@126.com
 * I'm glad to share my knowledge with you all.
 * �����ߣ���Ҫȥ�����˼ҵ�������
 */
public interface IVisitor {
	
	
	public void visit(CommonEmployee commonEmployee);
	
	
	public void visit(Manager manager);
	
	
	public int getTotalSalary();
}